Kind 2 diabetes is likely one of the most typical and well-studied fashionable ailments. So, new medicines to fight this situation are consistently being developed.
One such sort of treatment is known as a glucagon-like peptide 1 (GLP-1) agonist. These meds have change into more and more well-liked not too long ago as a result of though GLP-1 receptor agonists have been initially developed to deal with sort 2 diabetes, they started to point out a really promising profit: vital weight loss.
When you assume you’re a candidate for certainly one of these medicines, learn on to be taught every little thing you have to find out about GLP-1 agonists for weight reduction, how they work, who ought to take them, their unwanted side effects, and extra.
What Are GLP-1 Agonists?
Hormones are your physique’s pure messengers. They carry necessary messages to completely different organs to maintain your physique functioning usually. Each insulin and GLP-1 peptide are naturally occurring hormones.
The meals you eat will get damaged down into easy sugars (like glucose) in your abdomen.
This sugar then enters the bloodstream and travels all through the physique. Insulin directs the sugar out of your blood into your cells for use as vitality.
However when insulin can’t do its job properly anymore, the sugar stays within the blood, and also you develop type 2 diabetes.
For this reason individuals with diabetes have higher-than-normal blood sugar ranges. It’s additionally why most diabetes medicines (together with GLP-1 agonists) are focused in the direction of blood sugar management.
However like all good planners, your physique all the time has a backup. When insulin begins slacking off (prefer it does in of us with diabetes), your physique sends out the GLP-1 hormone to choose up the slack.
When scientists found this good transfer, they got here up with a strategy to mimic the physique’s actions. Thus, GLP-1 agonists have been developed.
An agonist is any manufactured substance (like a drug or treatment) that copies or boosts the actions of a naturally occurring substance (on this case, GLP-1) by stimulating its receptor.
How Does GLP-1 Work?
GLP-1 is often produced within the small gut. It has a four-fold messenger action:
- It tells the pancreas to extend insulin secretion to handle your blood sugar ranges correctly.
- It additionally tells the pancreas to not launch hormones like glucagon, which may transfer glucose from different storage locations (just like the liver) into the bloodstream.
- It tells your abdomen to digest the meals slowly in order that extra sugars don’t get added to the bloodstream earlier than insulin can clear them out.
- It tells your mind that you simply’re full and never hungry in any respect — aka, it decreases starvation and will increase satiety. This prevents overeating and retains you from taking in additional meals earlier than the earlier meal is totally digested.
This last motion has caught the attention of most people and has pushed GLP-1 agonists—probably the most well-known being semaglutide—into the limelight, even amongst individuals with out diabetes.
GLP-1 agonists can lower your urge for food and hold you feeling full on a regular basis. They might enable you drop a few pounds, particularly when you discover portion management difficult.
Does this imply anybody can take GLP-1 medicine to drop a few pounds? Let’s discover the professionals and cons of taking these medicines for weight reduction results.
6 Key Issues of GLP-1 Medication
GLP-1 agonists have been first authorised to be used as sort 2 diabetes treatment by the U.S. Meals and Drug Administration (FDA) in 2005. These medicine are often accessible in a liquid type, together with a needle and syringe.
It’s essential to inject them into the fatty tissue below your pores and skin. The most typical injection website is the stomach, adopted by the outer thighs, higher buttocks, and the backs of your arms.
These medicine are often really useful solely after extra typical strategies like food regimen and train have failed to supply the specified outcomes.
Even then, GLP-1 agonists aren’t miracle medicine. They need to be accompanied by dietary and lifestyle changes for long-term use.
1. Study who can and can’t take these medicine
To learn from GLP-1 agonist medicine, your body mass index ought to both be 30 or larger or be 27 or larger with a well being complication like:
- Prediabetes or sort 2 diabetes
- Heart problems
- Hypertension
- Excessive ldl cholesterol
- Non-alcoholic fatty liver illness
- Obstructive sleep apnea
- Polycystic ovarian syndrome
Based on MyFitnessPal’s registered dietitian, Stephanie Saletta, you need to seek the advice of your well being care supplier earlier than beginning this treatment. It’s because taking any treatment comes with sure dangers and attainable unwanted side effects. A great well being care supplier will enable you weigh the dangers you face by taking the treatment versus the dangers of not taking it.
They’ll additionally issue within the well being advantages you’ll obtain by taking the treatment. These medicine are greatest fitted to people who’re at health risk related to their weight. For instance, when you have weight problems, you’re at a higher risk of creating diabetes or coronary heart illness.
However when you’re NOT at well being threat, then these medicine aren’t recommended for you as a result of they put you at pointless threat of unwanted side effects.
You additionally shouldn’t take GLP-1s if:
- You’ve gotten a private or household historical past of thyroid most cancers, as they improve the chance of thyroid most cancers.
- You’re pregnant, breastfeeding, or planning to get pregnant.
- You’ve gotten extreme bowel illness.
- You’re allergic/delicate to Semaglutide.
One other factor to think about when choosing GLP-1s is the affect of those medicine in your meals consumption.
For instance, GLP-1s impact food intake by quieting meals noise and subconsciously getting you to decide on much less salty, sugary, and fatty meals. This speaks to how highly effective your unconscious cues to eat are and the position your mind performs in weight problems.
However it is a double-edged sword since you nonetheless should be acutely aware and conscious of what you’re consuming to ensure you’re eating enough—which is the place monitoring what you eat is available in.
Whereas taking GLP-1 medicines, you have to keep disciplined about making nutritious meals decisions and tracking your calories to forestall malnutrition and obtain wholesome weight reduction.
2. Know the GLP-1 medicine accessible and their effectiveness
Many GLP-1 medicines can be found on the U.S. market. Nevertheless, solely the next three are at the moment authorised by the FDA to be used as weight-loss medicine:
Semaglutide (Wegovy)
- Kind: injectable
- Frequency: weekly
- Beginning dose: 0.25 to 1.7 mg for the primary 16 weeks
- Upkeep dose: 2.4 mg
- Efficacy findings:
- Producer-sponsored research of 803 and 1,961 individuals: common lower in physique weight of seven.9% and 14.9%, respectively, with smaller waists and decrease whole levels of cholesterol, systolic blood strain, and triglycerides
- Research review in 2021: weekly dose of Wegovy led to weight discount results in a number of research
Liraglutide (Saxenda)
Tirzepatide (Zepbound)
- Twin GLP-1/glucose-dependent insulinotropic polypeptide (GIP) receptor agonist
- Kind: injectable
- Frequency: weekly
- Beginning dose: 2.5 mg in 0.5-mL liquid resolution for the primary 4 weeks
- Upkeep dose: 5, 7.5, 10, 12.5, or 15 mg from week 5 (based mostly on therapy response and drug tolerance)
- Efficacy findings:
- Manufactured-sponsored SURMOUNT-3 trial: whole imply weight lack of 26.6% over 84 weeks
- Manufactured-sponsored SURMOUNT-4 trial: whole imply weight lack of 26% over 88 weeks
3. Bear in mind their potential unwanted side effects
GLP-1 agonists include a protracted listing of potential adverse effects equivalent to:
- Digestive system: abdomen ache, nausea, vomiting, constipation, diarrhea, heartburn, indigestion, flatulence, bloating, belching, and gastroesophageal reflux
- Nervous system: headache, dizziness, fatigue, temper adjustments, and suicidal habits or ideation
- Low blood sugar and diabetic retinopathy in individuals with diabetes
- Allergic reactions
- Drug interactions
- Coronary heart charge adjustments
- Gall stones
- Pancreatitis
- Kidney harm
- Elevated threat of thyroid most cancers
Based on heart specialist and MyFitnessPal scientific advisor Danielle Belardo, MD, most gut-related unwanted side effects may be resolved by way of dietary adjustments like consuming smaller meals, rising fiber consumption, and staying hydrated.
4. Perceive the insurance coverage protection of those medicine
Insurance coverage protection for GLP-1 agonists like semaglutide depends upon a number of elements, equivalent to the kind of treatment, plan, supplier, and well being situation.
GLP-1s are generally lined by insurance coverage, however provided that deemed medically needed. For instance, some suppliers cowl them in the event that they’re used to deal with sort 2 diabetes.
Medicare doesn’t cowl these medicine for weight reduction, however in some states, Medicaid does.
You should definitely verify along with your supplier earlier than beginning this drug. Some plans could require prior authorization or a documented analysis. You might also want to satisfy sure well being standards or pay some copayment quantity.
Novo Nordisk and Eli Lilly (the producers) supply savings programs for individuals with out insurance coverage protection.
5. Know the weight problems therapy options to GLP-1
Listed below are some methods for weight administration if GLP-1s aren’t for you:
- Go for home-cooked as a substitute of ultra-processed foods.
- Make small, sustainable adjustments to vitamin.
- Add extra protein and fiber to your food regimen.
- Lower down on high-sugar drinks. Drink extra plain water as a substitute.
- Make sure that to get sufficient, high-quality sleep.
- Transfer your physique extra — whether or not it’s by way of train, taking a walk, and even doing chores.
- In excessive circumstances, take into account different weight reduction remedies like surgical procedure or medicines that trigger weight reduction (like phentermine).
- Search recommendation from professionals like a registered dietitian, psychologist, endocrinologist, or bodily therapist to obtain custom-made care tailor-made to your wants.
6. Bear in mind the utmost therapy length for GLP-1
Research exhibits that folks acquire round two-thirds of their misplaced weight again inside a 12 months after stopping GLP-1 dietary supplements. So, these medicine might not be your best option for long-term weight reduction.
Weight problems is taken into account a persistent situation. Medication like GLP-1s suppress cravings, improve insulin sensitivity, and mute obesity-promoting pathways within the physique. However these results may be reversed as soon as the drug is stopped.
In brief, GLP-1s can be utilized for the treatment of obesity however can’t treatment it utterly. That’s why you have to be mentally ready to be on GLP-1s probably for all times when you want to obtain everlasting advantages.
The Backside Line: GLP-1s Aren’t Proper for Everybody
Choosing the proper drug depends on many elements like your well being standing, drug tolerance, finances, and insurance coverage protection. Communicate to your well being care supplier earlier than beginning any medicines.
On the finish of the day, food regimen and train are simply as necessary in a profitable weight reduction journey. For a simple begin, introduce small adjustments like planning your meals, monitoring your energy, or creating an train routine.
Initially printed June 12, 2024; Up to date December 2025
